Improved composition-crayon



dlnited fiance WILLIAM COMP-TON,

v0F NEW YORK, N. v.

, Letters Patent No. 91,090, dated J zme 8,1869.

IMPROVED COMPOSITION-CRAYON.'

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern:

Be it known that I, WILLIAM COMPTON, of the city and State of New York,have invented and made a new and useful Composition for Crayons; and Ido hereby declare the following to be a correct description of the saidinvention, showing the peculiarity of my said composition.

Chalk crayons, employed in schools and academics, are of a very dustynature, and soil the clothing, the

person, and the room, besides being detrimental to adapted to a woodensurface, a painted surface, or a.

slate surface, as: the slate surface requires a crayon that is harderthan those for wood.

The ingredients I employ are Paris-white, or similar white earthymaterial, starch, and soap; and to harden the crayon and render itadapted to slates, I employ glue or gum. I

For a soft crayon I make use of the following ingredients:

About six pounds white.

About three and six-eighths ounces starch.

About three ounces soap.

About one-half ounce gum or glue.

For a harder crayon, adapted to slate surfaces, the proportions shouldbe varied by using about two and one-quarter ounces of glue or guminstead of half an The starch and soap are to be dissolved in hot water,sufiicient in quantity for rendering the white material plastic forpressing or moulding into shape.

The white should he sifted so as to separate any lumps, and render theplastic mass uniform in its character.

In soft crayons the glue or gum might be dispensed with.

Crayons formed in this manner are used with great facility, because thewhite dust is prevented from rubbing off on the fingers, and there islittle or no dust flying about in the atmosphere when the board or slateis cleaned off, because the particles adhere sulficiently to cause themto fall or to adhere to the rubber.

I find that it is preferable to form the crayons into a cylindricalshape by rolling them upon a table with a flat board, so as to compressand harden the material,

and give a slight gloss tothe surface, that prevents the chalk rubbingofl' on the fingers.

' The crayons are to be dried either in the sun or by artificial heat.

What I claim, and desire to secure by Letters Patent, is-- I Thecomposition for crayons formed of the materials, and as herein setforth.

Also, tothe crayon formed by rolling the plastic massbetween twosurfaces, to consolidate the same, as set forth.

In witness whereof, I have hereunto set my signature, this 15th day ofMay, A. D. 1869.

WM. COMPTON.

Witnesses:

' Gno. VD. WALKER,

GEO. T. PINCKNEY.

